Iprovement



UNITED STATES PATENT OFFICE.

JOHN IIEATON, OF FLUSIIING, NEV YORK.

EMPROVEMENT EN RAISING OR LIFTING WEIGHTS.

` Specification forming part of Letters Patent No. 34,958, dated April15, 1862.

To aZZ whom it may concern:

Be it known that I, JOHN HEATON, of Flushing, in the county of Queensand State of New York, have invent-ed a new and useful Improvement orDevice for Raising or Lifting lVeights, and which I term a cLever-Olampg and I do hereby declare that the following is a full, clear, andexact description of the same, reference being had to the accompanyingdrawings, making a part of this specilication, in which-- Figure l is aside sectional view of my invention, taken in the line x Fig. 2; Fig. 2,a horizontal section of the same, taken in t-he line y y, Fig. l.

Similar letters of reference indicate corre sponding parts in the twofigures.

The object of this invention is to obtain a simple and economical deviceto assist in raising and lifting weights, one which may be readilyapplied to its work, be portable and adapted for general or common useamong mechanics, farmers, dro., and where the cumbersome and expensivemachines constructed for such purpose would be impracticable.

To this end the invention consists in the employment or use of a jointedlever arranged in such a manner as to form a selfadjusting clamp andoperate on a rope which passes over a pulley attached to a folding`frame, substantially as hereinafter fully shown and described.

To enable those skilled in the art to fully understand and construct myinvention, I will proceed to describe it.

Arepresents a lever which is formed of two V parts a b, connected by ajoint B. This joint is formed by a pintle c, which passes through amortise d in the outer end of the part a of the lever, and also througha tenon e on the inner part b of the lever, which tenon is fitted in theinortise d. The end of the tenon e does not abut against the inner endof the mortise d, a space f heilig allowed between them, and the end ofthe tenon e is made somewhat beveling, its lower end being nearer theback end of the morti'se d than its upper end, as shown clearly in Fig.l. The two parts of the lever A are allowed to work freely on the pintleo, and the outer part of a is fitted in an upright C, and may be securedtherein by a fulcrum-pin f', if desired. In small implements thefulcrum-pin may be dispensed with. The lower end of the upright O isattached bya hinge or joint g with a base-plate D, which rests upon theground or floor.

E is a rope, which passes through the space f in the joint of the leverA, over a pulley F at the upper part of the upright C, and under apulley 7L on the base-plate D.

The implement is used as follows: The weight to be raised or lifted isattached to the end of the rope E, which passes over pulley F, and theouter end of the part b of the lever is grasped by the operator with onehand, while the other grasps the end of the rope which passes under thepulley 7L. The lever A is raised and lowered by the operator, and eachtime the lever descends the rope is clamped in the joint of the lever inconsequence of the lower part of the tenon e pressing the rope againstthe back end of the mortise (l. The lever A, in consequence of thusclamping the rope, admits of the latter being operated upon byleverage-power. The slack of the rope is taken up bythe operator at thetermination of each downward movement of the lever A, and the rope andweight are held or retained by the operator with one hand, while thelever is raised by the other to obtain a succeeding` hold on the rope,the lever slipping freely over the rope while being raised inconsequence of the lower end of the tenon c being drawn out from thelower part of the back end of the mortise d as the leveris elevated.(See red outline in Fig. l.) Thus by this simple device weights may beraised or lifted with great facility.

The device when not in use may be compactly folded by detaching thelever A from the uprightO and then folding the upright O and base-plateD together. The parts may be readily adjusted in proper position for usewhen required, and the upright C may, if necessary, be braced in anyproper manner from the base-plate D.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-n l. The lever A, formed of two parts a b,upright C, and base-plate D, all constructed Connected. by a joint B,arranged, as shown, and arranged for joint operation, as and for .toadmit of a rope E passing through it and the purpose set forth. A toclamp the rope as the lever descends and JOHN HEATON. to release therope and slip over it as the le- Vitnesses:

Ver is raised, for the purpose specified. ISAAC BLOODGOOD,

2. The combination of the lever A, rope E, JOHN HEATON, Jr.

